Molding-machine.



PATENTED MAY 14, 1907.

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J. BLUMER. MOLDING MAGHINE. LPPLIOATION FILED NOV. 22, 1905. B'BSEWED SEPT. 18, 1906.

JAMES'BLUMER, OF YORK, N. Y.

MOLDING-MACHINE.

Specification of Letters Patent.

Patented May 14, 1907.

Application filed November 22, 1905. Renewed September 18, 1906. Serial No. 335,149.

To all whom it may concern:

Be it known that 1, JAMES BLUMER, a citizen of the United States, residing at the borough of Brooklyn, in the county of Kings, city and State of New York, have invented an Improvement in Molding-Machines, of which the following is a specification.

My invention relates to a molding machine or apparatus in which a plurality of patterns may be brought into juxtaposed positions in different fixed and predetermined relations for use in forming the molds'for casting complementary articles, and the apparatus constituting my present invention was especially devised for forming the molds in which the corrugating rolls and integral gear Wheels shown and described in my co-pending application, Serial No. 288,530, filed November 22, 1905' for improvement in corrugating tools, are cast.

In carrying out my invention I employ a base, a base block, a pattern block mounted in the base block and adapted to be turned at least a partial revolution therein and also in which a pattern is received and is movable, means for turning the said. pattern block and pattern therein through a predetermined angle, means for moving said pattern partially out of and back into the said pattern block, standards secured to the base block, a frame mounted on the standard, a rod movable longitudinally in the said frame, a pattern secured to one end of the said rod, a sleeve adapted to receive the last aforesaid. pattern and from which the said pattern may be removed, means for holding the sleeve in a position adjacent to said frame, and means for holding the said rod in that position wherein the said pattern scured thereto is within the sleeve when the latter is supported in its aforesaid position, all of which will be hereinafter more particularly described.

In the drawing, Figure 1 is a side elevation of my improved apparatus. Fig. 2 is a central vertical section of the same. Fig. 3 is a sectional plan on line ac, ac, Fig. 2, with the flask removed, Fig. 4 is a partial elevation showing the parts in different positions than those shown in the other figures. Fig. 5 is a cross section of the base of the machine taken at right angles to the view shown in Fig. 2,

'and Fig. 6 is a sectional plan on liney, y,

Fig. 5.

a designates a base preferably made of cast metal and provided with a central transverse opening 2. b isa base block secured in any suitable manner upon the base a and whose lower face is preferably provided with a recess 3. The upper face of the base-block b is apertured to receive the pattern-block c, and this patternblock is centrally apertured and provided interiorly with gear teeth to receive the gear teeth of the gear or roll pattern d.

The lower end of the roll pattern 01 is provided with a shank 4 which passes through and is guided by a bearing 5, mounted in a bridge at the upper extremity of the aperture 2 in the base a. At the upper extremity of the gear pattern d the same is provided centrally with a pin (1, whose function will be hereinafter described. Secured concentrically by means of pins (1 or otherwise to the attern-block c, is a plate 6, and intervening between the same and the upper face of the base-block b I employ a cap 7 secured to the base-block in any desired manner and provided in its upper face with a recess to receive said plate 6.

e designates a lever, preferably a bell crank lever, and pivotally connected at 9 to a air of standards f secured to the base-block by suitable bolts f or otherwise, and 9 also represents a bell crank lever pivotally connected at 11 in the said standards f. The extremity of the lower arm of the lever e is adapted to engage a bearing 8 secured in the shank 4, of the gear pattern d, from which construction and the relationship of the said levers e and 9 it will be manifest that upon raising the upper arm of the lever g, the lower arm of the same will bear against and cause the upper arm of the lever e to be moved outwardly, thereby raising the lower arm of the lever e, and causing the pattern (1 to be raised and partially removed from the pattern-block c, and manifestly the reverse operation may be performed by raising the upper arm of the lever 6 by means of the handle 10 provided for this purpose.

Referring particularly to Figs. 1 and 3, the plate 7 is provided on one side of the apparatus with a sector shaped aperture 13 and an arm 12 is secured to the pattern block 0. This arm 12 passes through the recess 13 and is provided at its outer extremity with a downturned projection 14, by means of which the pattern-block and pattern together with the plate 6, may be turned a partial revolution.

is a button projecting through the base block b and normally maintained in position by a suitable spring I), and 16 is a pin secured to the button 15 and provided at one extremity with a tongue 17 fitting a slot in the baseblock b and projecting slightly therefrom and adapted to contact with one side or the other of the projection 14 to maintain the same with the arm 12 and roll pattern in one or the other of their positions, it being understood that the pin 16 and its tongue 17 move inwardly with the button 15 to permit the arm 12 and associated parts to be moved.

Secured to the upper ends of the standards f I prefer to employ a frame comprising the horizontal members 19 and 20 and the vertical member 21. h designates a rod passing vertically through suitable bearings in the horizontal members 19 and 20 of the said frame and provided at its lower extremity with a gear pattern a provided with a central aperture L adapted to receive the pin d, of the roll pattern d to the center of these parts, the said rod 7 and the gear pattern i being arranged to move vertically directly above the roll pattern (1. Secured on the red It and above the gear pattern i is a grooved head 22, the teeth or projections of which are arranged in alinement with those of the said gear pattern t. These parts may, if found desirable, be made integral with a cut-away portion 23 intervening. 7r designates a sleeve provided with a head 76 mounted 011 the rod h, and the said sleeve 1c is provided interiorly with gear teeth adapted to mesh with those of the gear 22 and gear pattern i, and the length of the said sleeve is such that when the said head 22 and gear pattern i are received therein, the lower face of the said gear pattern i is flush or approximately so with the lower extremity of the said sleeve 76. Zis a lever pivotally connected to the vertical member 21 of the said frame, spring actuated by a spring 24, and provided at its lower extremity with a hook 25 adapted to engage a shoulder on the head 7c of the sleeve is to maintain the said sleeve in position with the head in proximity to the under surface of the member 20 of the frame.

26 is an arm riveted at 27 or otherwise connected to the rod it between the horizontal members 19 and 20 of the frame, and the end of the arm 26 is adapted to travel between the guides 29 secured within the said frame to the standards f.

m designates a lever pivoted at m in the standards f actuated by a spring a and provided with a lug 28, on which in the normal position, as clearly indicated in Fig. 2, the end of the arm 26 rests to maintain the rod h and the parts associated therewith in their upper position.

In the use of my improved apparatus, the various parts are in their initial positions, as shown in Fig. 2, whereupon the [lash indicated at 0, employed in making the mold is placed upon the plate 6, and rim of the cap I 7. The lever g is then actuated to raise the roll pattern (I to the position shown in dotted lines, Fig. 1, after which the rod 7t and gear i are released by withdrawing the lever on and thereby permitting the said rod and gear pattern to drop into position upon the upper extremity of the roll pattern (I. Sand, or other material used in forming the mold, may now be packed around the said patterns within the flask 0, and when the mold is completed the lever 'Z is actuated to release the sleeve 70, which thereby falls until its lower extremity contacts with the upper surface of the sand forming the mold, and when this is done it will be apparent that the gear pattern i may be removed from the sand by merely raising the rod h, and also that then the roll pattern (1 may be withdrawn from the sand by returning the lever g to the position Fi g. 1, and raising the upper arm of the lever a.

As described in my aforesaid co-pending application in making a pair of corrugating rolls and gear teeth therefor for a given corrugating tool, it is desirable that the gear teeth of the gear and the roll shall be in alinement in one of the pair, whereas in the other it is necessary that the gear teeth be intermediate'of the teeth of the roll, and I have, therefore, provided in the apparatus hereinbefore described, to shift the roll pattern at revolubly from that position wherein the teeth thereof will be in alinement with the teeth of the gear pattern i, to such position that the teeth of the roll pattern (Z are intermediate of the teeth of the gear pattern i, which, as will be understood, is accomplished by pressing the button 15 inwardly and shift ing the pattern block 0 by means of the arm 12 and downward projection 14 thereof from one position to the other, as indicated in Fi g. 3.

I claim as my invention 1. In a molding machine, a base, a plurality ofpatterns, means for bringing said patterns into and away from juxtaposed positions, and means for changing the relationship of one or more of said patterns to that of the others so that in the same machine and with the same patterns molds for complementary castings may be made.

2. In a molding machine, a base, a pattern block, a pattern, means for adjusting said pattern revolubly to a predetermined position, a second pattern, and means for placing the same in juxtaposition with and moving the same away from the first aforesaid pattern.

3. In a molding machine, a base, a baseblock, a pattern, a pattern-block therefor, means for moving the same pattern into and out of said pattern-block, means for adjusting the said pattern and pattern-block revolubly, a second pattern and means for placing the same in juxtaposition with and moving the same away from the first aforesaid pattern.

4. In a molding machine, a base, a baseblock, a pattern, a pattern block therefor, means for moving the pattern into and out of said pattern-block, means for adjusting the said pattern and pattern-block revolubly, a second pattern, a sleeve adapted to receive said second pattern and into and out of which the same may be-moved, means for maintaining said sleeve in a predetermined position, and means for maintaining the last aforesaid pattern within the said sleeve.

5. In a molding-machine, a base, a base block, a pattern, a pattern-block therefor, means for moving the pattern into and out of said pattern-block, means for adjusting the said pattern and pattern-block revolubly, a second pattern, a sleeve adapted to receive said second pattern and into and out of which the same may be moved, means for maintaining said sleeve in a predetermined position, means for maintaining the last aforesaid pattern within the said sleeve, and means for maintaining a given relationship between the said sleeve and thelast aforesaid pattern.

6. In a molding machine, the combination with a base, a base-block, a pattern, a pattern block revolubly mounted within the said base-block, standards secured to the said base-block, levers pivotally mounted in the said standards and adapted through their actuation to move the said pattern longitudinally out of and into the said patternblock,'means for adjusting the position of the said pattern revolubly, a second pattern, a sleeve fitting over the same, and means for lowering the last aforesaid pattern into position above the first aforesaid pattern and raising the samefrom the said position.

7. In a molding machine, the combination with a base, a base-block, a roll pattern, pattern-block revolubly mounted within the said base-block, standards secured to the said base block, levers pivotally mounted in the said standards and adapted through their actuation to move the said pattern longitudinally out of and into the said'patterm block, means for adj usting the position of the said pattern revolubly, a frame secured to said standards, a rod mounted in bearings in said frame, a gear pattern secured to the lower extremity of said rod, a sleeve adapted to receive the gear pattern and into and out of which the same may be moved, means for maintaining the said sleeve in position beneath the said frame and means for holding the said rod and gear pattern in position with the gear pattern within the said sleeve.

8. In a molding machine, the combination with a base, a base-block, a roll pattern, a pattern-block revolubly mounted within the said base-block, standards secured to the said base-block, levers pivotally mounted in v the said standards and adapted through their actuation to move the said pattern longitudinally out of and into the said patternblock, means for adjusting the position of the said pattern revolubly, a frame secured to said standards, 'a rod mounted in bearings in said frame, a gear pattern secured to the lower extremity of said rod, a sleeve adapted to receive the gear pattern and into and out of which the same may be moved, a spring actuated lever for maintaining the said sleeve in position beneath the said frame, a spring actuated lever pivotally mounted in the said standards, a lug on the said lever and an arm secured to the said rod within the said frame whose outer'end is normally adapted to rest against said lug on the lever to normally maintain the rod in position with the gear pattern within the said sleeve.

9. In a molding machine, the combination with a flask, of co-related patterns adapted to enter the flask in opposite directions and come into contact and to recede from the flask in the opposite direction, said patterns forming a mold for an integral casting, and means for imparting a partial rotation to one of the patterns to change its relation to the other pattern for forming a complementary casting.

Signed by me this eleventh day of September 1905.

JAMES BLUMER. Witnesses:

GEO. T. PINOKNEY, S. T. HAVILAND. 

